Tootfinder

Can anybody please calculate for me the time #dilation numbers related to how much faster someone at the equator is moving compared to someone at, say, either of the poles? Or anywhere in between, really. Ideally, a simple formula that correlates degrees of latitude with speed of revolution would be great. I’m at 40°30’36”N, and 4960ft elevation. I presume elevation also factors into it.

The Great Software Quality Collapse: How We Normalized Catastrophe https://techtrenches.substack.com/p/the-great-software-quality-collapse
'Accept that quality matters more than velocity.
Make efficiency a promotion criterion. Reward eng…

The Great Software Quality Collapse: How We Normalized Catastrophe
The Apple Calculator leaked 32GB of RAM.

SEDust: A Pipeline for Deriving Best-Fit Spectral Energy Distributions from DUSTY Outputs
Hamidreza Mahani, Atefeh Javadi
https://arxiv.org/abs/2509.18795 https://

Norway is the undisputed leader when it comes to EVs in the vehicle fleet. Denmark is following closely behind, and at a rapid pace: the share of EVs in the vehicle fleet doubled in one year. Growth in the share is also continuing in Sweden and Finland.
https://

The Great #Software #Quality #Collapse: How We Normalized Catastrophe

⭐ The Great #Software #Quality Collapse: How We Normalized Catastrophe

VCs say some AI startups, under pressure to show rapid ARR growth, are using questionable accounting practices like counting one-time deals as recurring revenue (Allie Garfinkle/Fortune)
https://fortune.com/2025/09/28/how-is-arr-calculated-startups-venture/

‘There’s so much pressure to be the company that went from zero to $100 million in X days’: Inside the sketchy world of ARR and inflated AI startup accounting
Annual recurring revenue is the metric VCs and founders love to tout. But skeptics think these overblown numbers are helping fuel a bubble.

I2E2S2R Rumor Spreading Model in Homogeneous Network with Hesitating and Forgetting Mechanisms
Md. Nahid Hasan, Sujana Azmi Polin, Saiful Islam, Chandra Nath Podder
https://arxiv.org/abs/2510.10672

I2E2S2R Rumor Spreading Model in Homogeneous Network with Hesitating and Forgetting Mechanisms
The spreading and controlling of rumors have great impacts on our society. The transmission of infectious diseases and the spreading of rumors have some common scenarios. Like cross-infection propagation of diseases, two or many kinds of rumors or information may spread at the same time. In this paper, we propose a novel I2E2S2R rumor-spreading model in a homogeneous network. The rumor-free equilibrium, as well as the basic reproduction number, have been calculated from the mean-field equations…

Most of the math I know beyond "business calculus" is math I picked up in grad school (economics) or taught myself later. I'm constantly reminded there are gaps in my knowledge. For example, trigonometry doesn't come up much in economics or statistics. (1/n)
#math #learning

Finding the temperature window for atomic layer deposition of ruthenium metal via efficient phonon calculations
Alexandr Fonari, Simon D. Elliott, Casey N. Brock, Yan Li, Jacob Gavartin, Mathew D. Halls
https://arxiv.org/abs/2510.03975

Finding the temperature window for atomic layer deposition of ruthenium metal via efficient phonon calculations
We investigate the use of first principles thermodynamics based on periodic density functional theory (DFT) to examine the gas-surface chemistry of an oxidized ruthenium surface reacting with hydrogen gas. This reaction system features in the growth of ultrathin Ru films by atomic layer deposition (ALD). We reproduce and rationalize the experimental observation that ALD of the metal from RuO4 and H2 occurs only in a narrow temperature window above 100°C, and this validates the approach. Specif…